The seller has a Stevenson book with stamp and was wondering whether the inclusion of such a stamp in the book would make the book much more valuable. I obviously haven't got a clue, but what do you think? Are they very rare, and would they enhance the value of the book much? How much? And would they be classed as cinderella or would they be proper revenue stamps? If so are they listed in Barefoot or any other revenue catalogue?
Most are very rare by normal philatelic measures (e.g less than 10 copies recorded). With RLS, most met with fall into a small subset of the total number of values known, namely 2 2/5d, 3d, 4 1/5d being respectively 10% royalty due on books priced at the standard values of 2s, 2/6d & 3/6d.
Outside these core values, the frequency falls away rapidly.
However, as demand is low so the value remains low and unlikely to affect the price of an RLS book. Where I've bought a book for the stamp I've paid NZ$3-5 normally, with the odd one at $10 if it's not one of the commoner values.
To put things in perspective re Rarity vs Value, the Jarrolds 1 3/5d illustrated further up this thread, being the only recorded copy, and from an issuer where about 3-4 stamps in total are so far recorded, sold for $50. I'm not sure things will change, but I'm also not bothered - I don't collect them with the aim of funding my retirement, I collect them because they are really quite interesting.
And would they be classed as cinderella or would they be proper revenue stamps? If so are they listed in Barefoot or any other revenue catalogue?
Elsewhere in another thread http://www.stampboards.com/viewtopic.php?f=23&t=2972
I've noted that they are Revenues - "issued under the authority of a state" (namely the various Copyright Acts & Regulations defining the use of stamps), even in privately produced and the fee not going to that same state. Barefoot doesn't list them, but my catalogue does.